Color

#5b7ca9

#5b7ca9
hex#5b7ca9
rgbrgb(91, 124, 169)
hslhsl(215, 31%, 51%)
oklchoklch(0.58 0.079 256.3)
Closest name: steelblue (#4682b4)Relative luminance 0.195

Colors that go with #5b7ca9

Charcoal, Copper and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #5b7ca9

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a9895b

#5ba2a9 · #625ba9

#a95b7c · #7ca95b

Split-complementary

Open in tool →

#a9625b · #a2a95b

#a95ba2 · #a9895b · #5ba962

Contrast

#5b7ca9 as textRatioAAAA largeAAAFix
Aaon white
4.29:1failpassfail
  • AA: use #5676a4 as the text (4.64:1)
  • AAA: use #41597c as the text (7.13:1)
  • AA: or shift the background to #0d0d0d (4.54:1)
Aaon black
4.9:1passpassfail
  • AAA: use #8099bc as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b7ca9 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #5b7ca9
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5b7ca9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b7ca9-9ca8c4-df5d4e-201f2d-e9f0f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md